<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="./js/jquery-3.6.0.min.js" defer></script>
    <script src="./js/Jquery层级选择器之后.js" defer></script>
    <title>Document</title>
</head>
<body>
    <!-- 练习层级选择器 -->
<div id="div-1" class="testing">
    <ul class="lang">
        <li class="lang-javascript">JavaScript</li>
        <li class="lang-python">Python</li>
        <li class="lang-lua">Lua</li>
    </ul>

    <ul class="lang1">
        <li class="lang-javascript">JavaScript</li>
        <li class="lang-python">Python</li>
        <li class="lang-lua">Lua</li>
    </ul>
</div>
    
</body>
</html>